World No.1 Jason Day on Tuesday became the latest golfer to withdraw from the Rio Olympic Games because of fears over the Zika virus.

"The reason for my decision is my ­concerns about the possible transmission of the Zika virus and the potential risks that it may present to my wife's future pregnancies and to future members of our family," Australia's Day said in a statement.

The 28-year-old father-of-two joins the likes of Northern Ireland duo Rory McIlroy and Graeme McDowell - both down to compete for Ireland, Fiji's Vijay Singh, Marc Leishman of Australia and South Africa's Branden Grace in announcing his intention not to compete at the Games starting on August 5.